North Korea has claimed a "perfect success" for its most powerful nuclear test so far, a further step in the development of weapons capable of striking anywhere in the United States. Sunday's test by Kim Jong-un's regime had an estimated strength of 50 kilotons, defence ministry officials told a parliamentary briefing on Monday as Seoul agreed "it is time to strengthen" a military response against the North. The nuclear test was the first since US President Donald Trump took office in January. Mr Trump, asked if he would attack the North, said, "We'll see." Here's how regional and world media reacted… North Korea: Enemies are 'hell-bent' on escalation North Korea has launched a scathing attack on the “warmongers” in Seoul, along with South Korea’s allies in Washington and Tokyo, following Sunday’s missile launch. Official media in Pyongyang criticised the response from the South Korea “puppet forces” in calling for more UN action against the North and the “introduction of nuclear strategic assets into South Korea”. North Korea detonate sixth and most powerful nuclear test 00:56 “This is not only the height of the persecution mania of those upset by the recent launch of the Juche weapon but also useless racket of those hell-bent on escalating confrontation,” said a commentary from the Rodong Sinmun newspaper, which was produced by official KCNA news agency. Juche is North Korea’s home-grown ideology which promotes self-reliance and devotion to the country’s rulers. China: Seoul and Washington are at fault China's Global Times newspaper said Beijing should resist tougher sanctions on North Korea and blamed heightened tensions on the US and South Korea. The newspaper, which is produced by The People's Daily, the official mouthpiece of the ruling Communist Party, also warned against cutting off Pyongyang's oil supply and closing the border. "If North Korea's nuclear activities don't contaminate China's northeastern regions, China should avoid imposing overly aggressive sanctions on North Korea, it said in an editorial. "The root cause of the North Korean nuclear issue is that the military pressure of the Washington-Seoul alliance generates a sense of insecurity for Pyongyang who then believes that owning a nuclear strike capability is its sole guarantee for the survival of the regime." Officials in Beijing regularly blame Seoul and Washington for raising tensions on the Korean peninsula. Taiwan: Pyongyang must stop undermining security in the region Taiwan’s newspapers splashed on Monday with the escalating crisis over North Korea’s nuclear test, with the China Times opting for a chilling full page picture of a mushroom cloud. Other newspapers opted to show Kim Jong-un inspecting his missiles. “World criticizes N Korean nuclear test,” said the frontpage headline in the The Taipei Times, the island’s only English-language newspaper, next to a picture of joyful Pyongyang residents reacting to a televised announcement about the hydrogen bomb test that was displayed on a large city centre screen. The newspaper revealed that President Tsai Ing-wen convened a national security meeting on Sunday. “Tsai condemned North Korea for its action, and urged Pyongyang to stop any moves to undermine security in the region,” it said. Although not directly in the firing line of Pyongyang’s missiles, Taiwan, just a two hour flight from Seoul, would be caught in the crosshairs of any regional conflict. Japan The Japan Times Australia The Australian The Sydney Morning Herald Philippines The Daily Inquirer America New York Times New York Post Daily News The Washington Post United Kingdom The Daily Telegraph TELEGRAPH: US warns it is ready to annihilate N Korea #tomorrowspaperstodaypic.twitter.com/XvElzPsEet— Neil Henderson (@hendopolis) September 3, 2017 The Guardian GUARDIAN: Inquiries into custody deaths 'failing families' #tomorrowspaperstodaypic.twitter.com/71ut0ZfRZZ— Neil Henderson (@hendopolis) September 3, 2017 The Times THE TIMES: US threat to attack Kim after bomb test #tomorrowspaperstodaypic.twitter.com/lf0hitqZgx— Neil Henderson (@hendopolis) September 3, 2017 City AM CITY AM: Nuclear Reaction #tomorrowspaperstodaypic.twitter.com/K5MEadCk0z— Neil Henderson (@hendopolis) September 3, 2017 France Liberation